What Causes Brucellosis?

Direct Contact With Bacteria

Direct contact with the bacteria frequently spread brucellosis. The disease is not present on the skin of infected animals; thus, simply touching or petting an animal with brucellosis will not transmit the disease to humans. However, Brucella bacteria are present in the placenta, blood, semen, and other bodily fluids of infected animals, and direct contact with these fluids can pass the illness to humans. For example, while very rare, there has been a reported case of a man getting brucellosis after being bitten by his dog. This shows the Brucella bacteria can enter the skin through a tiny cut, scratch, or puncture wound. Generally, this is more likely to occur when helping animals give birth or when conducting animal experiments. Nevertheless, dog owners who have compromised immune systems, such as those undergoing cancer treatment, are recommended to avoid touching or petting them if the animal has a confirmed case of brucellosis.

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